For classic Ford projects many vendors now offer complete brake line kits for cars that ha
Tech | MMF Hose/Fluid Line Replacement
When we stop to think about it there are a lot of different types of fluid transfer processes that keep our Ford vehicles moving. Reliable function of these processes is imperative and any malfunction, however brief in any of them, can be catastrophic. We don't need to elaborate about what's at stake if fluid transfer for your brakes is interrupted. Almost as important are the engine oil, engine coolant, and automatic transmission fluid. Any prolonged interruption in these systems will fail the affected component.
Problems with the fuel system of course will stop the engine, but the chance of a leak is of far more concern because of the possibility of fire. Besides a careful routing plan that keeps any fluid transfer lines away from heat or moving parts, it's also important to understand that the requirements for lines and other components differ according to application. For example it would be a mistake to use low-pressure welded fuel line as brake line. Even though the system might be made to work, the fuel line won't have the same bursting pressure threshold as will purpose-designed seamless brake line, and could fail suddenly, resulting in loss of braking power.
Before this 8-inch axle was sent out for rebuilding, a trial fit showed how accurately the
The good news is that there are more choices than ever before when planning fluid transfer aspects of your next project. Many of the components you'll be after are now specifically made for your car. For example, if you're restoring a '68 Mustang it's possible to acquire a complete set of brake lines pre-bent specifically for your job in a choice of OE finish or stainless steel. It's also possible to find new transmission lines for popular conversions or upgrades. If you've decided to install an AOD transmission into your first generation Mustang a complete set of transmission cooling lines is now available pre-bent to the custom application and ready to bolt in. The advantages available in modern materials make other fluid transfer upgrades possible. Many classic Ford enthusiasts we know have replaced their OE-style rubber flex hoses on their brake systems with lines having a braided steel jacket. The result is less line expansion under pressure and a firmer brake pedal with more solid response.
Let's break down our discussion into some of the major categories present on any Ford vehicle. We'll then discuss options that you may wish to pursue during the fluid transfer phase of your next Ford vehicle project.
For those of you determined to make your own custom lines, this brake line tubing is speci
One of the most popular areas to address on many Ford projects, especially those of a vintage nature, is brakes. Besides eliminating drum brakes in favor of disc, most brake system refurbishment projects include replacement of rusted or otherwise damaged brake line. Often custom brakes lines will need to be fabricated as well.
Manual transmissions usually don't have external coolers but automatic transmissions almost always do. Whether the transmission fluid is routed to a heat exchanger inside the vehicle radiator or to an independent cooler, not to mention the line pressure and heat from automatic transmissions, demands a failure proof system. Besides the potential for a huge mess from a line or connection failure, the transmission fluid also poses the danger of fire if sprayed onto a hot exhaust manifold. The procedure for creating your own transmission cooling lines will be the same as shown for the brake line flaring formation but using larger diameter line. As is the case for brake lines, pre-bent transmission cooling lines are very likely available for your application.
There are several types of tube flaring kits available. This set comes from Great Neck. Th
We're working with 3/16-inch brake line, which is the most common size on Fords. First, in
With the die in the tube end, install the screw cone as shown. Next drive the cone home un
Fuel system requirements are very strict because of the danger of fire. Often times when a different carburetor is installed, the factory hard line is replaced with flexible fuel hose. While this can be acceptable if the length is kept in check, a safer and more sanitary fuel line routing/connection is desirable. For fuel system requirements it's hard to beat AN fittings, and honestly AN lines and fittings can be used in just about any fluid application, although fuel systems are the most popular. There are even quick-disconnect style AN fittings for easy vehicle servicing.
|AN Size||Tube Outside diameter|
Another An Application
On most of our Fords, the engine oiling system is completely internal to the engine and doesn't require our attention. However, once we get into high-performance applications an external engine oil cooler is often desirable.
Another critical area on your Ford involving fluid transfer is the engine cooling system. Here, unimpeded and uninterrupted fluid circulation is imperative. While OE-style rubber hoses are usually adequate, many enthusiasts we know choose to add braided steel jacketed hoses to their engine cooling system. While cooling systems operate at relatively low pressure of between 5 and 18 psi, these hoses have a greater resistance to heat and bursting and also add a custom touch to the vehicle engine compartment.
Loosen and remove the screw cone and die. The result for the first half of the procedure i
Next insert the 3/16-inch die into the tubing end. You may need to clean up the end of the
Next, reinstall the screw cone over the end of the brake line tubing that has been single
Hard lines should never be connected to moving suspension or brake parts, as the movement
Here's the completed double flare on our 3/16 brake line. The bevel in the cone imparts a
These new transmission lines are offered by Classic Tube. They are a bolt-in solution to t
For any kind of high-performance use, an external automatic trans-mission cooler is a very
This photo shows the transmission cooler in place in the slipstream, done in conjunction w
Mechanical fuel pumps for carbureted engines such as these Holley examples generate the ap
On a carbureted engine the fuel pressure may be 5-7 psi. Even with this relatively low pre
This photo shows our carb set up for the BG fuel log. You can see that the result will be
On an EFI system the pressures generated are far higher than on a carbureted set up, in th
Earl's double ended hose-end wrenches will be needed to assemble the AN connections to our
Here, the special AN wrenches are used to secure the fitting to the hose ends. The wrenche
These -6 AN hose-end fittings from Earl's Performance have a 90-degreee bend and are the c
Here a fuel line attachment is again made using the AN wrenches. Forget any hose clamps or
As seen here, an adapter is used between the oil filter and the cylinder block to carry th
There are several different types of external engine oil coolers available. This new unit
For most classic applications, OE-type coolant hoses are adequate. These exact reproductio
Those of us after a custom touch can opt for flexible radiator hoses with metal coil or br
There is no doubt that braided steel jacketing on the upper radiator hose is a major custo
This is a 20-foot roll of Russell Performance Pro Classic black high-pressure hose. It's r